Re: [GIT PULL] KVM changes for 4.18 merge window

From: Linus Torvalds
Date: Tue Jun 12 2018 - 23:52:29 EST

On Tue, Jun 12, 2018 at 8:26 PM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> Ok, so commit 95cde3c59966 ("debugfs: inode: debugfs_create_dir uses
> mode permission from parent") breaks lkvm, and I think qemu-kvm too.
> The commit looks like the RightThing(tm) to do, but we do not break
> existing work-flows, no matter how much we'd like to. So it gets
> reverted.

I suspect it's the special kvm debugfs entries - see kvm_create_vm_debugfs()

Anyway, I've verified that both qemu-kvm and kvm-tool work fine with
the revert in place.